EP4029077B1 - Vorrichtung zur regelung der temperatur eines elektrischen elementes mittels einer dielektrischen flüssigkeit - Google Patents

Vorrichtung zur regelung der temperatur eines elektrischen elementes mittels einer dielektrischen flüssigkeit Download PDF

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Publication number
EP4029077B1
EP4029077B1 EP20785548.7A EP20785548A EP4029077B1 EP 4029077 B1 EP4029077 B1 EP 4029077B1 EP 20785548 A EP20785548 A EP 20785548A EP 4029077 B1 EP4029077 B1 EP 4029077B1
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EP
European Patent Office
Prior art keywords
volume
dielectric fluid
enclosure
ancillary
dielectric
Prior art date
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Active
Application number
EP20785548.7A
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English (en)
French (fr)
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EP4029077A1 (de
Inventor
Kamel Azzouz
Sébastien Garnier
Amrid MAMMERI
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a device for regulating the temperature of an electric battery or other electric element to be cooled and/or heated using a dielectric fluid and the electric battery comprising said device. It is in particular intended to equip motor vehicles, in particular motor vehicles with electric or hybrid motorization.
  • the present invention relates to a device in accordance with the preamble of claim 1, and as described in the document FROM 10 2017 212211 .
  • heat exchangers consisting of a cold plate with circulation of a cooling liquid, the plates being in contact with the cells to be cooled. This type of technique can lead to uneven cooling of the batteries and thus limit their lifespan and performance. These devices also have a relatively high thermal resistance due to the thicknesses of material present between the cooling liquid and the cells.
  • a proposed solution to address this problem consists of immersing the cells forming the electric batteries in a dielectric heat transfer fluid. This immersion can be carried out with a circulation of fluid or in static condition with phase change.
  • dielectric fluid circuits are known which make it possible to spray the cells with dielectric fluid.
  • tilting the vehicle may prevent proper routing of dielectric fluid to the dielectric fluid pump.
  • the invention aims to solve these problems by proposing a device for regulating the temperature of an electrical element capable of heating, said device comprising a dielectric fluid circuit, said circuit comprising spraying means for spraying the surface of said element at the using said dielectric fluid, a reservoir of dielectric fluid, characterized in that the reservoir comprises a volume main volume, said main volume being intended to contain said electrical element capable of heating, and an adjoining volume for storing dielectric fluid, said adjoining volume being fluidically connected to said spraying means, said adjoining volume being at least partially peripheral with respect to the volume major.
  • An object of the invention is also an electric battery comprising a sealed closed body, said body comprising said electric element capable of heating and a device as described above for regulating the temperature of said electric element.
  • An object of the invention is also an electrical system comprising said battery, means for measuring the inclination of said device, and a controller.
  • FIG. 1 illustrates a device 2 for regulating the temperature of a battery 4 comprising several cells 6 for storing energy. As a variant, however, it is any other electrical element to be cooled.
  • the device includes a dielectric fluid circuit to cool or heat the cells 6.
  • the circuit comprises spraying means 8 for spraying the surface of the cells 6 with the aid of said dielectric fluid, a reservoir 10 of dielectric fluid and a pump (not shown) for pumping the dielectric fluid towards said spraying means 8.
  • the dielectric fluid is sprayed in the liquid or two-phase phase.
  • the evaporation of the dielectric on the surface of the cells cools the cells and evaporates the dielectric fluid.
  • the volume of the reservoir of dielectric fluid is at most 20% of the volume of the reservoir, preferably at most 10%.
  • the dielectric fluid is cooled and thus condensed by a condenser 11 in the form of a plate arranged above the cells 6.
  • the plate delimits within it a refrigerant circuit and connected by pipes to an external refrigerant circuit but it is alternatively of any type suitable for cooling the dielectric fluid and thus condensing it for its recovery in the tank 10.
  • the reservoir 10 comprises a main volume 12 intended to contain the energy storage cells 6, and an additional volume 14 for storing dielectric fluid.
  • the main volume 12 is delimited by a first enclosure, formed by a first peripheral wall.
  • the annex volume 14 is delimited by a second enclosure, around the first enclosure, between the first wall and a second wall extending around the first wall.
  • the annex volume thus extends peripherally around the main volume.
  • the annex volume extends in its height over the entire height of the main volume at least. It is thus at the same horizontal level, at least in part.
  • the annex volume has a dimension much smaller than that of the main volume, namely its width, here measured between the first wall and the second wall, and compared to the width of the main volume between two opposite sides of the first wall.
  • the annex volume has a dimension in a horizontal plane, less than the same dimension of the main volume.
  • the ancillary volume retains within them a sufficient quantity of dielectric fluid to supply the pump for a certain time.
  • the peripheral arrangement guarantees that at least part of the annex volume is supplied with dielectric fluid in the event of a constant inclination, for example.
  • the orifices of the ancillary volumes are for example provided with a non-return valve to prevent the conduits supplying the pump from being emptied by the effect of the inclination of the device.
  • the pump remains continuously powered, even over a long period of incline.
  • At least one annex dimension of an annex volume is at most equal to one 1/2 of the same dimension of the main volume, preferably at most equal to 1/3.
  • the adjoining volumes are thus configured such that, in any inclined position of the device by 15° relative to the horizontal, the dielectric fluid outlet orifice is submerged.
  • the annex volume 14 here has a parallelepipedic shape but it is alternatively of any suitable type.
  • the pump is for example connected directly to volume 14, without intermediate conduits.
  • the pump has for this purpose an inlet orifice in contact with an outlet orifice of the annex volume, but this fluidic connection between the two is alternatively of any suitable type.
  • a lift pump is connected to a low point of the main volume 12. This variant thus makes it possible to recover the dielectric fluid in this other part of the main volume and conveys the dielectric fluid to the annex volume 14.
  • solenoid valves are for example provided, coupled to a tilt detection means. It is thus possible to close the unpowered conduits.
  • the battery can comprise several modules each comprising several energy storage cells.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Finger-Pressure Massage (AREA)

Claims (11)

  1. Vorrichtung (2) zur Regelung der Temperatur eines elektrischen Elements, das warm werden kann, wobei die Vorrichtung (2) Folgendes beinhaltet: einen Kreislauf einer dielektrischen Flüssigkeit, wobei der Kreislauf Sprühmittel (8) beinhaltet, um die Oberfläche des Elements mit Hilfe der dielektrischen Flüssigkeit zu besprühen, einen Behälter (10) mit dielektrischer Flüssigkeit, wobei der Behälter ein Hauptvolumen (12) beinhaltet, wobei das Hauptvolumen dazu bestimmt ist, das elektrische Element, das warm werden kann, aufzunehmen, wobei die Vorrichtung dadurch gekennzeichnet ist, dass der Behälter ferner ein Nebenvolumen (14) zum Speichern dielektrischer Flüssigkeit beinhaltet, wobei das Nebenvolumen mit den Sprühmitteln fluidisch verbunden ist, wobei das Nebenvolumen zu dem Hauptvolumen mindestens teilweise peripher angeordnet ist.
  2. Vorrichtung (2) nach Anspruch 1, wobei das Nebenvolumen das Hauptvolumen mindestens teilweise umgibt.
  3. Vorrichtung (2) nach Anspruch 1 oder 2, wobei das Nebenvolumen so konfiguriert ist, dass eine Flüssigkeitsauslassöffnung für dielektrische Flüssigkeit des Nebenvolumens in jeder zu der Horizontalen um 15° geneigten Position der Vorrichtung eingetaucht ist, wenn das Nebenvolumen mit dielektrischer Flüssigkeit gefüllt ist.
  4. Vorrichtung (2) nach einem beliebigen der vorhergehenden Ansprüche, wobei das Hauptvolumen (12) durch eine erste Einfassung begrenzt wird.
  5. Vorrichtung (2) nach einem beliebigen der vorhergehenden Ansprüche, wobei das Nebenvolumen (14) durch eine zweite Einfassung, die sich von der ersten Einfassung unterscheidet, begrenzt wird.
  6. Vorrichtung (2) nach dem vorhergehenden Anspruch, wobei die zweite Einfassung die erste Einfassung mindestens teilweise umgibt.
  7. Vorrichtung (2) nach dem vorhergehenden Anspruch, wobei die erste Einfassung durch eine erste Umfangswand gebildet ist und die zweite Einfassung durch eine zweite Wand gebildet ist, die sich mindestens teilweise um die erste Wand herum erstreckt.
  8. Vorrichtung (2) nach dem vorhergehenden Anspruch, wobei die erste Wand und die zweite Wand zusammen das Nebenvolumen begrenzen.
  9. Vorrichtung (2) nach einem beliebigen der vorhergehenden Ansprüche, die eine Pumpe (11) zum Pumpen der dielektrischen Flüssigkeit von dem Nebenvolumen zu den Sprühmitteln beinhaltet.
  10. Elektrische Batterie, die einen dichten geschlossenen Körper beinhaltet, wobei der Körper das elektrische Element (6), das warm werden kann, und eine Vorrichtung (2) nach einem beliebigen der vorhergehenden Ansprüche zur Regelung der Temperatur des elektrischen Elements beinhaltet.
  11. Elektrisches System, das eine Batterie wie in Anspruch 10 definiert, Mittel zum Messen der Neigung der Vorrichtung und eine Steuerung beinhaltet.
EP20785548.7A 2019-09-10 2020-09-08 Vorrichtung zur regelung der temperatur eines elektrischen elementes mittels einer dielektrischen flüssigkeit Active EP4029077B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1909980A FR3100660B1 (fr) 2019-09-10 2019-09-10 Dispositif de régulation de température d’un élément électrique à l’aide d’un fluide diélectrique
PCT/FR2020/051544 WO2021048492A1 (fr) 2019-09-10 2020-09-08 Dispositif de régulation de température d'un élément électrique à l'aide d'un fluide diélectrique

Publications (2)

Publication Number Publication Date
EP4029077A1 EP4029077A1 (de) 2022-07-20
EP4029077B1 true EP4029077B1 (de) 2023-06-28

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EP20785548.7A Active EP4029077B1 (de) 2019-09-10 2020-09-08 Vorrichtung zur regelung der temperatur eines elektrischen elementes mittels einer dielektrischen flüssigkeit

Country Status (5)

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US (1) US20220352576A1 (de)
EP (1) EP4029077B1 (de)
CN (1) CN114391195A (de)
FR (1) FR3100660B1 (de)
WO (1) WO2021048492A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3129779A1 (fr) * 2021-11-29 2023-06-02 Valeo Systemes Thermiques Dispositif de regulation de la temperature d’un element electrique et/ou electronique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3166175B1 (de) * 2015-11-04 2018-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Elektrische batterie, die ein system für die homogenisierung der innentemperatur aufweist
CN109417859B (zh) * 2016-06-28 2019-12-06 Abb瑞士股份有限公司 具有冷却系统的变换器单元装置
GB201619987D0 (en) * 2016-11-25 2017-01-11 Iceotope Ltd Fluid cooling system
JP6737241B2 (ja) * 2017-06-16 2020-08-05 株式会社デンソー サーモサイフォン
DE102017212211A1 (de) * 2017-07-17 2019-01-17 Mahle International Gmbh Energiespeicheranordnung
FR3075471B1 (fr) * 2017-12-14 2019-11-08 Valeo Systemes Thermiques Dispositif de regulation de temperature d'une batterie a l'aide d'un fluide dielectrique et pack-batterie comprenant un tel dispositif

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Publication number Publication date
US20220352576A1 (en) 2022-11-03
FR3100660B1 (fr) 2022-12-02
FR3100660A1 (fr) 2021-03-12
EP4029077A1 (de) 2022-07-20
CN114391195A (zh) 2022-04-22
WO2021048492A1 (fr) 2021-03-18

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